CN202630084U - Dust collection device in tail outlet flue of corner tube boiler - Google Patents
Dust collection device in tail outlet flue of corner tube boiler Download PDFInfo
- Publication number
- CN202630084U CN202630084U CN 201220261519 CN201220261519U CN202630084U CN 202630084 U CN202630084 U CN 202630084U CN 201220261519 CN201220261519 CN 201220261519 CN 201220261519 U CN201220261519 U CN 201220261519U CN 202630084 U CN202630084 U CN 202630084U
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- Prior art keywords
- economizer
- dust collection
- collection device
- boiler
- corner tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a dust collection device in a tail outlet flue of a corner tube boiler, and aims to overcome the shortcomings of the conventional equipment. The dust collection device comprises a settling chamber, a multi-stage baffle plate, an expansion joint, an economizer and an ash falling hopper, and is characterized in that the settling chamber is formed in the tail outlet flue; and three layers of groove-shaped baffle plates are arranged in the settling chamber to form the multi-stage baffle plate. The dust collection device is designed by utilizing a gravity and inert dust collection principle and the characteristics of flue gases of a layer-burning boiler, the dust content of the flue gases at the front end of the economizer is lowered, the heat transfer effect of the economizer is enhanced, and the abrasion of the economizer is reduced, so that the thermal efficiency of the boiler is improved, the service life of the boiler is prolonged, and the dust collection device is widely applied to the corner tube boiler.
Description
Technical field
The utility model belongs to the Thermal Power Engineering applied technical field, relates to the grate firing boiler flue gas ash removal.
Background technology
The arrangement form of economizer has two kinds in the corner tube boiler back-end surfaces, and a kind of is rectilinear layout, and flue gas flows out from bottom to top; Another kind is arranged horizontally, and flue gas flows out from left to right.Because the economizer horizontal arrangement produces long horizontal flue, the economizer of leading is prone to dust stratification, causes the economizer heat conductive performance to descend, and influences boiler thermal output, and the wearing and tearing of economizer also increase in addition, thereby influence the service life of boiler.The wearing and tearing of the dustiness from the flue gas that reduces the economizer front end, the heat-transfer effect that strengthens economizer, minimizing economizer must be carried out improvement and design by the interior dust arrester of diagonal tubular type boiler tail exhaust pass to improve the thermal efficiency and the service life of boiler.
Summary of the invention
The purpose of the utility model is the dust arrester that will provide in a kind of corner tube boiler afterbody exhaust pass, to overcome the deficiency that existing equipment exists.
Dust arrester in the corner tube boiler afterbody exhaust pass of the utility model can adopt following technical scheme to implement: it comprises expansion chamber, multistage baffle plate, expansion joint, economizer and ash dropping hopper; Its middle setting chamber is arranged in the back-end ductwork; In expansion chamber, settle three layers of flute profile baffle plate to form multistage baffle plate, make flue gas can't produce short circuit.The structure of all the other expansion joints, economizer, ash dropping hopper, the operation principle and the relation of installing are same or similar with prior art.
In the corner tube boiler afterbody exhaust pass that designs and produces according to technique scheme dust arrester compared with prior art its main feature be:
1, because expansion chamber is set in back-end ductwork, flow section enlarged after then boiler smoke got into gravity settling chamber, and flow velocity reduces, and heavier particle slowly to the ash dropping hopper sedimentation, carries out elementary dedusting under the effect of gravity; In expansion chamber, be provided with after the multistage baffle plate, ash-laden gas impacts on baffle plate, and the flow of flue gas direction takes place sharply to change.Inertia force effect by grit itself is left itself and flue gas flow point, thereby carries out dedusting once more.
2, owing to be provided with gravity, inertial dust collection device at the economizer front end; Reduced the length of horizontal flue in the flue; Increased the sectional area size of ash dropping hopper, declined to a great extent, improved the heat-conductive characteristic and the boiler thermal output of economizer so get into the dustiness of the flue gas of economizer; Reduce the wearing and tearing of economizer, improve the service life of boiler.
Description of drawings
Dust arrester in Fig. 1, the prior art in the corner tube boiler afterbody exhaust pass.
Dust arrester in the corner tube boiler afterbody exhaust pass of Fig. 2, the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further narration.
As shown in Figure 2; Dust arrester in the corner tube boiler afterbody exhaust pass comprises expansion chamber 1, multistage baffle plate 2, expansion joint 3, economizer 4 and ash dropping hopper 5; Its middle setting chamber 1 is arranged in the back-end ductwork; In expansion chamber, settle three layers of flute profile baffle plate to form multistage baffle plate 2, the structure of all the other expansion joints 3, economizer 4, ash dropping hopper 5, the operation principle and the relation of installing are same or similar with prior art such as Fig. 1.
Claims (1)
1. dust arrester in the corner tube boiler afterbody exhaust pass; Comprise expansion chamber (1), multistage baffle plate (2), expansion joint (3), economizer (4) and ash dropping hopper (5); It is characterized in that expansion chamber (1) is arranged in the back-end ductwork, in expansion chamber, settle three layers of flute profile baffle plate to form multistage baffle plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261519 CN202630084U (en) | 2012-06-05 | 2012-06-05 | Dust collection device in tail outlet flue of corner tube boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261519 CN202630084U (en) | 2012-06-05 | 2012-06-05 | Dust collection device in tail outlet flue of corner tube boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630084U true CN202630084U (en) | 2012-12-26 |
Family
ID=47383279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261519 Expired - Fee Related CN202630084U (en) | 2012-06-05 | 2012-06-05 | Dust collection device in tail outlet flue of corner tube boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883391A (en) * | 2017-12-12 | 2018-04-06 | 上海交通大学 | A kind of anti-wear system of π types boiler flue |
| CN113970186A (en) * | 2021-09-08 | 2022-01-25 | 容涛 | Gas wall-mounted furnace |
-
2012
- 2012-06-05 CN CN 201220261519 patent/CN202630084U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883391A (en) * | 2017-12-12 | 2018-04-06 | 上海交通大学 | A kind of anti-wear system of π types boiler flue |
| CN113970186A (en) * | 2021-09-08 | 2022-01-25 | 容涛 | Gas wall-mounted furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |